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AQA Biology - GCSE > Hormones > Flashcards

Hormones Flashcards

To study the different types of hormones

1
Q

Where is the hormone progesterone made?

A

Ovaries

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2
Q

What happens when there is too little water in the blood?

A

The hypothalamus detects this and causes the pituitary gland to release more ADH into the blood.

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3
Q

HIGHER BIOLOGY - how can auxins be used in agriculture?

A

* As weed killers * As rooting powders * For promoting growth in tissue culture

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4
Q

Where is the pituitary gland found?

A

In the brain

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5
Q

What are hormones made of?

A

Sicen hormones are proteins, they are made of amino acids

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6
Q

How are hormones moved aroud the body?

A

In the blood

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7
Q

Which hormones are found in fertility drugs?

A

FSH and LH

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8
Q

Where is the function (job) of the hormone glucagon?

A

Makes the liver covert glycogen into glucose

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9
Q

Which gland is which?

A

Diagram with answers:

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10
Q

Which is the target organ for the hormone thyroxine?

A

Most body tissues

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11
Q

Where is the hormone FSH made?

A

The pituitary gland

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12
Q

Where is the function (job) of the hormone FSH?

A

Causes an egg to mature in an ovary. Stimulates the ovaries to release oestrogen

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13
Q

What does LH stand for?

A

Luteinising Hormone

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14
Q

Which is the target organ for the hormone testosterone?

A

Male reproductive organs

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15
Q

Which is the target organ for the hormone progesterone?

A

The uterus and mammary glands

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16
Q

Where is the function (job) of the hormone LH?

A

Triggers ovulation (the release of a mature egg) from an ovary

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17
Q

Where is the function (job) of the hormone oestrogen?

A
  1. Stops production of FSH (so only 1 egg matures at a time)
  2. Repairs, thickens and maintains the uterus lining
  3. Stimulates the pituitary gland to release LH
  4. Causes secondary sexual characteristics
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18
Q

Which is the target organ for the hormone LH?

A

Ovaries

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19
Q

What happens when there is too little water in the blood?

A

The hypothalamus detects this and causes the pituitary gland to release more ADH into the blood.

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20
Q

What is the function (job) of the pituitary gland?

A

It is a ‘master gland’ which secretes several hormones into the blood in response to body conditions.

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21
Q

What happens when there are high ADH levels in the blood?

A
  • More water is resorbed by the (nephrones in the) kidneys back in to the blood.
  • This is an example of negative feedback.
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22
Q

Where is the hormone insulin made?

A

Pancreas (by beta cells)

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23
Q

What happens when there are high ADH levels in the blood?

A
  • More water is resorbed by the (nephrons in the) kidneys back in to the blood.
  • This is an example of negative feedback.
24
Q

Which organ system produces hormones?

A

The endocrine system

25
What does ADH stand for?
Antidiuretic Hormone
26
Where are all hormones made?
Glands
27
Which is the target organ for the hormone FSH?
Ovaries
28
Which is the target organ for the hormone ADH?
The kidneys
29
Where is the function (job) of the hormone ADH?
Water retention by the kidneys
30
What is a hormone?
A chemical messenger carried in the blood to target organs
31
Where is the hormone glucagon made?
Pancreas (by alpha cells)
32
Where is the function (job) of the hormone progesterone?
Maintains the lining of the uterus during the middle part of the menstrual cycle and during pregnancy.
33
Which is the target organ for the hormone insulin?
Liver
34
Where is the function (job) of the hormone insulin?
Makes the liver covert glucose into glycogen
35
What does FSH stand for?
Follicle Stimulating Hormone
36
Where is the hormone adrenaline made?
The adrenal glands (on top of the kidneys)
37
Where is the hypothalamus found?
In the brain
38
HIGHER BIOLOGY - What can gibberellins be used to do in plants?
* Initiating seed germination * End seed dormancy * Promote flowering * Increase fruit size
39
Which is the target organ for the hormone glucagon?
Liver
40
Where is the function (job) of the hormone adrenaline?
* Increases the heart rate. * Increases breathing rate. * Boosts the delivery of oxygen and glucose to the brain and muscles, preparing the body for 'flight or fight'.
41
Where is the function (job) of the hormone testosterone?
1. Main male reproductive hormone 2. Stimulates sperm production 3. Causes secondary sexual characteristics
42
Where is the hormone oestrogen made?
Ovaries
43
Where is the hormone testosterone made?
The Testis
44
Where is the hormone thyroxine made?
The thyroid gland
45
Which is the target organ for the hormone adrenaline?
Heart; Lungs; muscles
46
HIGHER BIOLOGY - how can auxins be used in agriculture?
* As weed killers * As rooting powders * For promoting growth in tissue culture
47
BIOLOGY - What are auxins?
* They are plant hormones. * Made in the tips of the growing stems and roots (apical meristems) * Diffuse to other parts of the stems or roots.
48
HIGHER BIOLOGY - What is ethen used for in plant Biology
Controls cell division and repening of fruit
49
Which hormones are found in the oral contraceptive (the pill)?
Oestrogen or progesterone
50
HIGHER BIOLOGY - What are gibberellins?
* They are plant hormones * Responsible for growth and development, are important for initiating seed germination. * Low concentrations can be used to increase the speed of germination. * They stimulate cell elongation and cause plants to grow taller. * Naturally produced by seeds.
51
Which is the target organ for the hormone oestrogen?
Female reproductive system
52
Where is the hormone LH made?
The pituitary gland
53
Where is the hormone ADH made?
The pituitary gland
54
Where is the pituitary gland found?
In the brain
55
BIOLOGY - What do auxins do in plants?
* They control the growth of plants by promoting cell division and causing elongation in plant cells * Stems and roots respond differently to high concentrations of auxins: cells in stems grow more cells in roots grow less

AQA Biology - GCSE (2 decks)

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